Within the seminar, students give talks on current topics in condensed matter physics. The seminar aims to give a closer look at new developments in condensed matter physics and to show how these developments can be transferred into applications. The seminar focuses on spin electronics, spin dynamics, solid-state quantum information processing, the physics of solid-state nanostructures, and high temperature superconductivity. These topics are in the focus of several research projects of WMI and collaborative research programs in the Munich area (e.g. the Excellence Cluster "Munich Center for Quantum Science and Technology (MCQST)", the Munich Quantum Valley e.V., as well as several BMBF and EU projects).

The seminar is relevant for the special courses on "Superconductivity and Low Temperature Physics" as well as on "Magnetism and Spintronics". It is suitable for bachelor students in the 5th semester or higher and for master students.

Schedule

List of open topics for seminar talks in SS 2023:

1. A quantum electromechanical interface for long-lived phonons (A.. Bozkurt et al., Nature Physics 19 1326-1332 (2023))

2. Microwave Fluorescence Detection of Spin Echoes (E. Billaud et al., Phys. Rev. Lett. 131, 100804 (2023))

3. Proximity superconductivity in atom-by-atom crafted quantum dots (L. Schneider et al., Nature 621, 60-65 (2023))

4. Indistinguishable telecom band photons from a single Er ion in the solid state (S. Ourari et al., Nature 620, 977-981 (2023))

5. Single-electron spin resonance detection by microwave photon counting (Z. Wang et al., Nature 619, 276–281 (2023))

6. Room-temperature magnetoresistance in an all-antiferromagnetic tunnel junction (Peixin Qin et al., Nature 613, 485 (2023))

7. Observation of the orbital Hall effect in a light metal Ti (Young-Gwan Choi et al., Nature 619 52–56 (2023))

8. Millisecond Coherence in a Superconducting Qubit (Aaron Somoroff et al., Phys. Rev. Lett. 130, 267001 (2023))

9. Loophole-free Bell inequality violation with superconducting circuits (S. Storz et al., Nature 617, 265-270 (2023))

10. Beating the break-even point with a discrete-variable-encoded logical qubit (Zhongchu Ni et al., Nature 616, 56-60 (2023))

11. Macroscopic Quantum Test with Bulk Acoustic Wave Resonators (Björn Schrinski et al., Phys. Rev. Lett. 130, 133604 (2023))

12. On-demand directional microwave photon emission using waveguide quantum electrodynamics (Bharath Kannan et al., Nature Physics 19, 394 (2023))

13. Nonlinear multi-frequency phonon lasers with active levitated optomechanics (Tengfang Kuang et al., Nature Physics 19, 414 (2023))

14. Giant spin polarization and a pair of antiparallel spins in a chiral superconductor (R. Nakajima et al., Nature 613, 479 (2023))

15. Distributed quantum sensing with mode-entangled spin-squeezed atomic states (B.K. Malia et al., Nature 612, 661 (2022))

16. Topological lattices realized in superconducting circuit optomechanics (A. Youssefi et al., Nature 612, 666 (2022))

17. Electrons with Planckian scattering obey standard orbital motion in a magnetic field (A. Ataei et al., Nature Physics 18, 1420 (2022))

18. Observation of vortices and vortex stripes in a dipolar condensate (L. Klaus et al., Nature Physics 18, 1453 (2022))

19. Asynchronous current-induced switching of rare-earth and transition-metal sublattices in ferrimagnetic alloys (G. Sala et al., Nature Materials 21, 640 (2022))

20. Random-Access Quantum Memory Using Chirped Pulse Phase Encoding, J. O'Sullivan et al., Phys. Rev. X 12, 041014 (2022))

21. Piezomagnetic switching of the anomalous Hall effect in an antiferromagnet at room temperature (M. Ikhlas et al., Nature Physics 18, 1086 (2022))

22. Emerging Research Landscape of Altermagnetism (Libor Šmejkal et al., Physical Review X 12, 040501 (2022))

23. Chiral cavity quantum electrodynamics (John Clai Ownes et al., Nature Physics 18, 1048 (2022))

24. Non-classical mechanical states guided in a phononic waveguide (Amirparsa Zivari et al., Nature Physics 18, 789 (2022))

25. Steady-State Heat Transport and Work With a Single Artificial Atom Coupled to a Waveguide: Emission Without External Driving (Yong Lu et al., PRX Quantum 3, 020305 (2022))

26. Magnifying Quantum Phase Fluctuations with Cooper-Pair Pairing (W.C. Smith et al., Phys. Rev. X 12, 021002 (2022))

27. Steady Floquet–Andreev states in graphene Josephson junctions (Sein Park et al., Nature 603, 421-426 (2022))

28. Scaling of the strange-metal scattering in unconventional superconductors (Jie Yuan et al., Nature 602, 431 (2022))

29. Fermi surface transformation at the pseudogap critical point of a cuprate superconductor (Yawen Fang et al., Nature Physics (2022)